AuditoryIntegration.net, an AIT provider, offers a helpful description of Berard's initial theory:
- After 35+ years of clinical practice and study, Dr. Berard determined that, in many cases, distortions in hearing or auditory processing contribute to behavioral or learning disorders. In the large majority of Dr. Berard's cases, AIT significantly reduced some or many of the handicaps associated with autism spectrum disorders...[and many other issues]...
Berard Auditory Integration Training was designed to normalize hearing and the ways in which the brain processes auditory information. For example, an individual tests as hypersensitive to the frequencies of 1,000 and 8,000 Hertz while perception of all other frequencies falls within the normal range. The individual becomes overstimulated, disoriented or agitated in the presence of sounds at 1,000 and 8,000 Hertz. Therefore, Berard AIT works to normalize the hearing response across all frequencies within the normal hearing range.
- If an individual is determined [through specific tests] to be an appropriate candidate for AIT, the treatment program consists of 20 half-hour sessions during a 10- to 12-day period [or longer], with two sessions conducted daily. Treatment sessions consist of listening to music that has been computer-modified to remove frequencies to which the individual demonstrates hypersensitivities, and to reduce the predictability of the auditory patterns. A special device (an Audiokinetron) is used to modify the music for the treatment sessions. Audiograms are repeated midway and at the end of the training sessions, to document "progress" and to determine whether additional sessions are needed.
Now, the $64,000 question: Does AIT really work?
Of course, there are plenty of people who will tell you that it does - and that their child improved tremendously as a result of AIT. The research, however, is contradictory: Some studies suggest great benefits from AIT while others suggest absolutely no benefits and even some negative side effects (hearing issues). Even those who recommend AIT have some reservations. The Center for the Study of Autism, which investigated AIT with very positive results, has this caveat: "Some people exhibit unexpected behavioral problems during the 10-day AIT period, such as agitation, hyperactivity, and rapid mood swings."
In summary: Like many autism treatments, AIT has its avid supporters and its equally determined detractors. Studies of AIT's efficacy are inconclusive. The price of treatment can be high, and the process can be grueling. Still, many parent will choose to try AIT, feeling that they don't want to leave any stone unturned in their child's treatment.
If you do decide to try AIT, be sure to select your practitioner carefully. Dr. Guy Berard, the initial developer of AIT, has actually developed a list of guidelines which could be used as a checklist to ensure the practitioner's knowledge and the safety of his/her equipment. Most importantly, be very sure you know (a) how the practitioner expects this treatment to help and (b) when change should be expected. Benchmark your child's behaviors and abilities ahead of time (video is a good way to ensure objectivity) and then check again as you go through the process. Be sure the program is really working as advertised; if it is not, don't hesitate to walk away.
AMERICAN ACADEMY OF PEDIATRICS: Committee on Children With Disabilities. "Auditory Integration Training and Facilitated Communication for Autism." PEDIATRICS Vol. 102 No. 2 August 1998, pp. 431-433
Edelson,Stephen M. Ph.D. "Auditory Integration Training: Additional Information." Center for the Study of Autism, Salem, Oregon, 1995
Gravel JS Auditory integrative training: placing the burden of proof. Am J Speech Lang Pathol. 1994; 3:25-29
Rimland B, Edelson SM Pilot study of auditing integration training on autism. J Autism Dev Disord. 1995; 25:61-70